The MRCOOL DIY-24-HP-WM-230C25 E Star DIY 4th Gen 24K BTU Ductless Mini-Split Heat Pump is a high-efficiency HVAC solution designed to provide reliable heating and cooling for residential and light commercial spaces. It works by transferring heat between indoor and outdoor units using advanced heat pump technology, ensuring consistent indoor comfort while reducing energy consumption. ... https://www.partshnc.com/mrcool-e-star-diy-4th-gen-24k-btu-ductless-mini-split-heat-pump-model-diy-24-hp-wm-230c25